United States Postal Service

3.5
33 reviews

About

Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order Service
Visit your local Post Office™ at 420 W 4th St to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office™ boxes, passports, gift cards, and more

Location

United States Postal Service
420 W 4th St, Antioch, CA
94509, United States

Hours

Reviews

3.5
33 reviews
5 stars
13
4 stars
7
3 stars
2
2 stars
4
1 star
7
  • DC
    D Chang
    Nov 6, 2025
    5.0
    The staff there was super helpful and courteous.
  • DD
    dixi1951
    Jul 21, 2025
    1.0
    Hate to go to this Post Office. The clerk was very rude. She was just very unprofessional. Very snippy and calling out to ones just loud and rude .
  • MR
    Mary Rose
    Jul 10, 2025
    5.0
    It's small, but no lines! I was in and out in 10 minutes. It's a convenient location too.
  • BN
    Brian Nies
    Dec 20, 2017
    1.0
    Worst post office I have ever been to. Have a po box here and I live 2 hours away and I drive all the way here to find they changed the hours so now 2 hours back and then put to this hell hole another day.

Frequently Asked Questions About United States Postal Service

Can I get a passport application at this Post Office?

Yes, Thousands of Post Offices™ accept first-time passport applications for the U.S. Department of State. Most of those locations can also take your passport photo. Please complete and print your passport application form before you apply.

Is an appointment needed for passport services?

Most Post Offices that offer passport services have set hours, and you'll need to schedule an appointment using our online scheduler. We also offer limited Passport walk-in hours at select locations.